Masonite

Where it forms, where it's found

2recorded occurrences

Source · OpenStreetMap

Physical

Colour: Dark greyish-green

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 7 15.999 111.993
33.82%
26FeIron Iron 1 55.845 55.845
16.86%
25MnManganese Manganese 1 54.938 54.938
16.59%
13AlAluminium Aluminium 2 26.982 53.964
16.30%
14SiSilicon Silicon 1 28.085 28.085
8.48%
12MgMagnesium Magnesium 1 24.305 24.305
7.34%
1HHydrogen Hydrogen 2 1.008 2.016
0.61%
Total 331.146 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
8OOxygen	Oxygen	7	15.999	111.993	33.82%
26FeIron	Iron	1	55.845	55.845	16.86%
25MnManganese	Manganese	1	54.938	54.938	16.59%
13AlAluminium	Aluminium	2	26.982	53.964	16.30%
14SiSilicon	Silicon	1	28.085	28.085	8.48%
12MgMagnesium	Magnesium	1	24.305	24.305	7.34%
1HHydrogen	Hydrogen	2	1.008	2.016	0.61%
	Total	331.146	100.00%

Synonyms

Masonit
Masonita

Literature, links & citation

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Masonite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/masonite-4996},
  note      = {Accessed 2026-05-11}
}